John w



J. W. A. BEE-RS. Dies for Making Sheet Metal Hinge Blanks.

Patented Oct. 12,1880.

N. PETE, PHOTD-UTHOGRAPRER, WASHINGTON D C UNITED STATES PATENT @EEICE.

JOHN W. A. BEERS, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO STANLEY WORKS, OF SAME PLACE.

DIE FOR MAKING SHEET-METAL HlNGE-BLANKS.

SPECIFICATION forming part of Letters Patent No. 233,135, dated October 12, 1880. Application filed November 1, 1875.

To all whom it may concern Be it known that I, JOHN W. A BEERs, of New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Dies for Making Sheet-Metal Hinge-Blanks, of which the following is a specification.

My invention consists of the peculiar combination of the gage, die, and punch hereinafro ter described; also, in the peculiar combination of the die, punch, and gages with the screw-hole dies and punches, as hereinafterdescribed.

In the accompanying drawings, Figure 1 is a plan view of the die proper, or lower half of the main cutting-dies employed in making hinges in accordance with my invention. Fig. 2 is a face view of the punch belonging to the same, and Fig. 3 is a plan view of a blank cut by said dies.

A designates the main die, which is brought to a cutting-edge upon the rear end, a, and two sides, b b. For convenience of making the die A, the non-cutting edge 0, at the front end, is

2 5 made square across, as is indicated by the broken lines under the gage B in Fig. 1. The rear end, a, of the die A is so shaped as to form a central win g, d, Fig. 3, on the blank cutout by said die, as shown, which wing is afterward 0 formed into the central coil of one leaf of the hinge. Upon one side of the die A, preferably the right-hand side, there is a gage, O, for gaging the edge of the metal plate from which the blanks are cut.

At the front end of the die A there is a gage, B, the end of which acts as a stop-gage and the sides as lateral gages. This gage B is tapered toward its front end, for a purpose hereinafter described.

The punch D is of the same form as the die A, and fits therein, as in ordinary dies and punches. The rear end of said punch is slotted, as atf, Fig. 2, in order that it may not interfere with the gage B.

In rear of the die A, 1 form four or more smaller dies, 4 4 4c 4, and in front of the punch 1) four or more smaller punches, 5 5 5 5, for punching screw-holes in the blanks. These dies for screw-holes, although very useful, are 50 not essential to the operation of the die A and punch D, and may be omitted, if desired, in which case the screw-holes will be made after the blanks are cut.

The operation and use of the dies are as follows: Metal is selected of the proper thickness and with practically straight edges, and the right-hand edge of said metal is placed against the gage U and partially over the die A, which die and the punch D are placed in any ordinary power-press or hinge-machine, in the usual man nerofoperatin g dies an d punches. The punch is then caused to descend, and the metal under it is cut out, leaving the metal slotted, as at g,in the blank, Fig. 3. The metal is then passed along until the end of the gage B engages with the metal at the end of the slot g, as indicated by broken lines in Fig. 1. The body of this gage Bis wide enough to fill the slotg in the metal. and both of its sides bear against said metal, and hold it in place laterally, the end of the gage being tapered, in order to more conveniently enter it into the slot g. The length of the gage B is such that the metal is stopped just short of the front end 0 of the die A, as indicated by broken lines in Fig. 1. The punch then again descends, and the die cuts out the rear end and two sides of the blank, and in doing so the metal from which said blank is cutis formed into the proper shape for the front slotted end of the succeeding blank, as before described. The continuous strip of metal is thus fed along under the punch and over the die, producing successively a blank for every cutting action of said dies.

In case the screw-hole dies 5 are employed they act simultaneously with the other die to cut out the proper screw-holes in the metal in rear of the die. At the cutting of the next blank the screw-holes so cut are brought into the position indicated by the broken circles in Fig. l.

The blank thus formed, and shown in Fig.

3, has at one end the wings to form the coils of one leaf of a hinge, and at the opposite end 5 the wing from which to form the coil of the other leafofa hinge. The blank is then cut apart on a straight line, as indicated by the line 2 2, Fig. 3, thereby making the two blanks for a pair of hinge-leaves, which may be bent,

pinned, and riveted in any of the ordinary and two sides, in combination with the punch 10 modes. I), substantially as described.

It is, of course, evident that blanks with n, 2. The die A, gages B G, and screw-hole greater number of wings from which to form dies 4, in combination with the punch D and 5 coils may be made in the manner described, punches 5, substantially as described.

if desired. JOHN W. A. BEERS.

I claim as my invention- 1. The die A, of the form described, and gage Witnesses CHARLES E. HOLT,

B, fitted to gage the metal both from its end JAMES SHEPARD. 

